for US Continental orders over $99
Harken 150 mm Black Magic Blocks
150 mm AirBlocks® feature Torlon® rollers in a self-contained center cage. Rollers stay parallel for low-friction efficiency. UV-resistant, carbon-black Delrin® balls carry sideloads of Harken Blocks - 150mm Black Magic.
Used on offshore boats, these blocks offer a no inclimb-out in deep groove sheave with radiused edges to protect line. Sculpted aluminum sideplates and thin-profile sheaves make these blocks very lightweight. No stainless-to-aluminum contact prevents corrosion.
MAURIPRO Sailing, your direct access to Harken 150 mm Black Magic Blocks and all your other sailing and boating needs.